Chapter 11, Problem 51A

Interpretation Introduction

Interpretation:

The mole ratio in conversion from $S{O}_2$ to $CaS{O}_4$ needs to be determined.

Concept introduction:

Mole ratio is conversion factor which is used to determine the ratio in which the given substances are reacting in a balanced chemical equation.

Answer to Problem 51A

Mole ratio is $\frac{2molCaS{O}_4}{2molS{O}_2}$ or $\frac{1molCaS{O}_4}{1molS{O}_2}$

Explanation of Solution

The given balanced chemical equation is as follows:

$O_2+2S{O}_2+2CaS{O}_3\underset{}{\overset{}{\to }}2CaS{O}_4+2C{O}_2$

Here, 2 mol of SO₂ gives 2 mol of CaSO₄ thus, the mole ratio will be as follows:

$\frac{2molCaS{O}_4}{2molS{O}_2}$ or $\frac{1molCaS{O}_4}{1molS{O}_2}$